Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Investigation of 115 kV capacitor bank failure during switching in Chiang Mai 3 substation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Kanitpanyacharoen, S. ; Northern Region Oper. Div., Electr. Generating Authority of Thailand, Chiang Mai, Thailand ; Premrudeepreechacharn, S.

In this contribution, the investigation on the failures of 115-kV capacitor banks during switching in Chiang Mai 3 substation is presented. The switching transient is caused by energizing an isolated bank and back-to-back switching. Close time of circuit breaker for energizing capacitor bank, system loads, and power factors are varied in the simulations by PSCAD/EMTDC program to determine the causes of maximum inrush current and overvoltage. Simulation results of energizing isolated bank suggest that the maximum inrush currents occurs with a higher system load while the maximum overvoltage occurs in a lower system load. The back-to-back switching sequence of capacitor banks has given different results. Method No.l is the most optimal sequence for energizing capacitor bank and is most likely to minimize the effects of back-to-back switching.

Published in:

North American Power Symposium (NAPS), 2011

Date of Conference:

4-6 Aug. 2011